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Talja [164]
3 years ago
10

1/3x^2-5=7 what is x

Mathematics
1 answer:
Mnenie [13.5K]3 years ago
3 0

Answer:

x= 6

Step-by-step explanation:

\frac{1}{3}x^{2}-5=7\\

Add 5 to both sides

\frac{1}{3}x^{2}-5+5=7+5\\\\\frac{1}{3}x^{2}=12\\

Multiply both sides by 3

3*\frac{1}{3}x^{2}=12*3\\\\x^{2}=36\\

x² = 6*6

Take square root,

√x² =√6*6

x = 6

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What is the width of a rectangle with an area fo 5\8in2 and a length of 10 inches?
Paul [167]

Answer:

1/16 inches

Step-by-step explanation:


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3 years ago
Admission to a carnival is $5 and each game at the carnival costs $0.85. You have $15 to spend on admissions and games. What is
Nadusha1986 [10]

Answer: 11 games

Step-by-step explanation:

With $15,

First step, subtract cost of admission= $5

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If one game costs $0.85

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=11.7

The maximum number of games he can play is 11.

I hope this is clear.

3 0
3 years ago
Simplify (-9k+12k+9)-(10k+3k+4K-8)
Arte-miy333 [17]

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Step-by-step explanation:

3 0
3 years ago
HELP ME I DONT NEED AN EXPLANATION
Darina [25.2K]

Answer:

x = 15

WX = 34

Step-by-step explanation:

Part 1:

We know that arc AB and AC have to be equal because the lines splitting off from the center point are congruent to eachother.

Lets start by subtracting 106 from 360, which gives us 254. We know that both of our missing arcs have to add up to equal 254 and we also know that they're congruent. This means we can simply divide 254 by 2 to get 127 and set that equal to our 10x - 23.

10x - 23 = 127

Get x by itself

10x = 150

x = 15

Part 2:

Since we're assuming both XY and XW are tangent we're just going to set them equal to eachother.

7x - 29 = 2x + 16

Get your Xs on one side and your constants on the other.

5x = 45

Divide

x = 9

Plug in your x

7(9) - 29

63 - 29

WX = 34

4 0
3 years ago
The point guard of a basketball team has to make a decision about whether or not to shoot a three-point attempt or pass the ball
melamori03 [73]

the expected value for the 3 point shot = (3 * 0.30) + (0 * 0.70) = 0.90

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the expected value for the 2 point shot is higher than the 3 point shot so he should pass the ball

5 0
3 years ago
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